[337] Bhikkhus, if, while that bhikkhu is conducting himself thus and dwelling thus, there arise in him at some time or other, through a lapse of mindfulness, evil unwholesome states — memories and intentions (sarasaṅkappā) connected with the fetters — slow, bhikkhus, may be the arising of mindfulness, but then he quickly abandons them, dispels them, puts an end to them, and brings them to non-existence. Suppose, bhikkhus, a man were to let two or three drops of water fall onto an iron pan heated all day: slow, bhikkhus, may be the falling of the water drops, but then they would quickly go to destruction and evaporation. Even so, bhikkhus, if, while that bhikkhu is conducting himself thus and dwelling thus, there arise in him at some time or other, through a lapse of mindfulness, evil unwholesome states — memories and intentions connected with the fetters — slow, bhikkhus, may be the arising of mindfulness, but then he quickly abandons them, dispels them, puts an end to them, and brings them to non-existence. It is in this way, bhikkhus, that a bhikkhu's conduct and dwelling are maintained, such that, as he conducts himself and dwells, evil unwholesome states of covetousness and grief regarding the world (abhijjhā-domanassa) do not flow in upon him.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.